Self-Powered External Storage Not Recognized/randomly Disconnecting
Mar 16, 2012
I have a 1TB external storage drive that uses its own power supply and connects to my laptop via USB 2.0 cable. For months I've had absolutely no problem out of the device, until the computer randomly decided to forget the device was plugged in. Now I'm lucky to get the device to be recognized by the computer at all, and when it is recognized, if I try to move anything to/from the device, the connection is immediately severed from the computer.I use this device for my backup as well as holding on to things I would rather not get rid of. All my drivers are up to date, I've done all the Power Management checking and unchecking that I've read from other threads found via Google search, and still it won't work correctly for me.
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Jan 21, 2012
I have a big problem with a MP3 Player which I use it as a storage device. It has only 512 MB and I decided to use it as a stick. A long time ago i had encountered the problem shown in the "TITLE". So when i connect the device in ANY usb port it connects and disconnects every 3 seconds continously. Don't forget that this is only a MP3 player and on the box it is mentioned that is driverless. Until this problem the device was working well and i could use it as a little stick. I tried to uninstall the driver in Device Manager and to desable it but every time the same thing. The most important thing is now.....I connected it on a laptop and it works and i saw that the laptop has the same driver...I mean when i connect it it installs a driver. Also i can connect to my PC (where this problem occurs to my MP3 player) other usb devices such as hard disks printers webcams and everything works fine. So this means that the problem is not to the USB or the PM3 Player or driver...
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Feb 20, 2012
i ask to during installation of windows7 not working or cant boot-up
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Oct 14, 2011
Keyboard and mouse drivers unaffected.USB Mass storage device properties messagewith driver check on:"Windows cannot verify the digital signature for the drivers required for this device."with driver check off:Tells me drivers are corrupt or missing.Search show diver where it should be:C:\Windows\System32\drivers\usbstor.sys (also usbfilter.sys).Used the HP Recovery Manager to restore factory setting for USBStor.sys, it indicates it is successful but no changeon reboot, still cannot use flash drives, SD cards, external HDs. Units work find on my laptop.Called HP 4 times, after extensive troubleshooting each time, following their instructions, go to hp.com/go/instant, get screen saying request has been received. Each time tech tells me he cannot find my request.After a while, read 2 hours, told they need to talk to supervisor, will call me back, KISS OF DEATH, never hear from them.
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Oct 7, 2012
My broadband connection randomly and frequently drops, particularly when composing Emails on Sky mail and messages on sites such as Facebook and other forums. Running the troubleshooter always fixes the problem and the messages I get are 1) A network cable is not plugged in and 2) the computer was manually disconnected from network profile. My router is a Sky Sagem, using Sky Fibre Broadband. It is connected to my PC wirelessly and so I do not understand why it complains that a network cable is not plugged in.
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Jan 4, 2012
why does my internet always after like 5 min go to no internet acsess and i disconect and reconect its fine ?both regular computers work fine but my ps3 and laptop both work then all of a sudden the little yellow ! comes up and then it says no internet access
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Nov 28, 2012
Why does wireless connection to the internet keep disconnecting randomly
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Mar 18, 2011
This one is really bugging me because I have checked everything, and I cannot fathom out what is causing the disconnection apart from, either is a MB issue or driver issue...?Whenever, I turn on my computer and Windows loads it will not load the USB External HDD which has been set to AUTO so it will load when Windows loads. I have tried manual switch but this does not work either. The HDD is a combo HDD with Firewire and USB 2.x although, if I use Firewire instead its fine...?What is happening is that Device Manager in disabling the device for some reason, and the only way in which I can get Device Manager to recognise the "EXT HDD" is to search for new hardware and then it works...?The only thing that I found to be a little odd was there is no set power showing for the USB Mass Storage Device 0 mA I know it is the right port location because it is the same number. There is something I forgot to mention and that is the battery needs replacing. I have never had a battery die on me on a motherboard ever. The only conclusion I can think for the reason why the battery has been drained in the ROC Logo on the MB I used to leave on and I think it drained the motherboard battery. If the power is terminated, example the PSU is turned off then I have to reset the BIOS.
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Feb 14, 2010
Windows 7 x86 I've got an USB External Hard Disk Drive (Samsung S2 Portable 500 Gb). In the last 3-4 days it keeps randomly disconnecting when in use... So, Windows starts, it runs fine for an hour or so (in use), then the magic sound strikes. After a couple of seconds it's detected again, and the whole show starts again. Sometimes it reconnects for 3-4 times in a minute.My USB drivers are up to date, I've unchecked all those Power Management things, I've installed the KB976972 update (tho I'm not quite sure I was suited for it ). I thought it was the cable's fault, so I left it on my brother's Vista PC for about 5 hours playing movies, and it worked...
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Dec 29, 2009
I have an external drive that does backups of files for me on a weekly basis through windows, needless to say the backup was getting bigger so I decided to go for a better data storage solution and formatted the external into NTFS. While doing this I also decided to format a USB key into NTFS.THE external drive format took hours, four or so hooked up via firewire. I blamed the issue on the drive and ignored it for the next couple of weeks. The backups didn't work properly they stopped halfway according to Windows even if I let them run 12+ HOURS. Before I formatted it took only 2-3 hours for the backup. I blamed the entire issue on the drive, maybe time to replace it, but I didn't have time to mess with it cause it was simply annoying me.Didn't use the key until tonight. Remember it is formatted as NTFS also. I started to copy a movie file to it, 700mb, it stopped at nearly 89% with 5 seconds left and did not move one bit. I hit cancel and it stayed on the cancel screen for 10 minutes with no resolve. At this point I tried to open a firefox window and it was not responding.......so what did I do I pulled the key and just like that Firefox window popped up and all was well. At that point it hit me, but the external storage solutions are NTFS, could it be my Mobo? Surely not!, Oh Microsoft you make me sad again....Just like with Vista. I reformatted the USB key back to FAT32, transferred a larger 1.4gig file in about 2-3 minutes and had no hangup issues. I can't blame the issue on the mobo especially since it relates to both USB 2.0 connection and the FireWire has the same issue. I guess windows 7 64bit doesn't like external NTFS connections. My windows appears up to date!
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Feb 19, 2012
I have a 4 month old HP ProBook 4530s with a hard drive in danger of 'imminent failure' according to 'Intel SMART technology' warnings that start to flash upon boot-up. Hard drive has been backed-up. Does this include ALL web links in the favorite file? Running Win 7, Explorer 9. Lots of 'eHow' 'solutions' appear upon a search of this topic, none of which seem to be correct for my system.
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Nov 20, 2010
i've currently disabled the autoplay to no action for all the options set in the autoplay options in control panel however whenever i connect a external storage like external hd thats split into 3 or 4 partitions i get 4 pop up options on what i want to do & its really annoying. Is there something different i need to edit for external mass storage devices?
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Jul 16, 2012
I tried to install window 7 to new Extreme SSD couple times but I always got the same message:Windows has encountered a problem communicating with a device connected to your computer. This error can be caused by unplugging a removable storage device such as an external USB drive while the device is in use, or by faulty hardware such as a hard drive or CD-ROM drive that is failing. Make sure any removable storage is properly connected and restart your computer. If you continue to receive this error message, contact the hardware manufacture.Status: 0xc00000e9..Info: An unexpected I/O error has occurred.
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Jan 20, 2013
My computer shows the space and everything else but doesnt show the folder and files in it like pictures and videos... and also i cant copy anything to it... on other computer there is no problem.
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Mar 1, 2012
There are times when it is not being recognized by Windows 7(pro). It has three interface options (fire wire, esata, and USB). I have tried all three at one time or another, finally settling on the eSATA interface. When it IS recognized, it runs smoothly, with no hiccups. But when I try to shut down the PC, sometimes it hangs up on the shut down screen for a long time (more than 15 minutes at times) until I actually press the on/off button on the My Book. When I do this, my PC immediately shuts down, but then, if I start up my PC, Windows does not see it again. I then have to power the My Book back on, then power up the PC and hope that it is recognized again. It�s not a big issue, because it is not frequently used, except for storing back-ups. It�s just something that is a nuisance. I�m not even sure that it is a Windows problem, because sometimes it is not detected in BIOS. why it is intermittently being detected and why it is hindering the shut-down process?
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Feb 24, 2011
windows 7 does not recognize an external HD; I do not see it in "computers" but in "devices and printers". What should I do
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Dec 29, 2012
I have two external hdds (2.0).
I thought they could be plugged into a 3.0 USB, but it wasn't recognized. I thought they were backward compatible.
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Aug 20, 2012
I have a FW800 external storage drive and only usb 2.0 ports on my laptop.Would it be possible to use a laptop ExpressCard with a FW800 port plugged into a USB ExpressCard adapter?If it does work, would I see any of the FW800 speeds or get capped by the USB 2.0 port?
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Mar 7, 2012
I have a Lacie 250GB firewire external HD (couple of years old) which I use as a backup device. It's only used (switched on) about once a month.Everything has been fine until yesterday. When I switch it on, the light comes on and it whirrs into action as usual, but, rather unusually, Windows 7 (32bit) starts looking for a driver and then says, "Device driver software was not successfully installed". The HD, unsurprisingly, doesn't show in "My Computer" but does show in "Device Manager".I have uninstalled and reinstalled the HD, but still no joy.I have a separate 64bit partition (used exclusively for music) on the PC which does recognise the HD, so all is not lost, and leads me to think that the HD or cable is not the problem.
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Oct 6, 2011
This problem just popped up on both my win 7 machines. Powered usb external drives (the ones that are based on standard hard drives and plug into the wall) are recognized, but the smaller usb powered ones are not. The drives work on the same computers when booted xp so it's not the usb itself.
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Feb 18, 2012
I`ve upgraded my laptop`s ram today from 4gb to 8gb, why not do a fresh install of windows as dell support center wasn`t loading up anymore .Anyhow I have a lacie 500Gb hard drive which seemed to work fine till now . Right now , after the reinstall my hard drive just isn`t accesible anymore . Basically i can see it in the devices and printers section , i can see it on disk management ( i also tried changing the letter etc , the partition is active i can see that it`s 500gb but i can`t acces any data ) and i can also see it on My computer as a partition but not as a storage device . What does happen is after 2-3 minutes or so , a windows pop`s out to format the disk which i can`t even do , on my girlfriend`s laptop works very well . Now this is extremely strange as i did nothing and all but reinstall windows , also i`ve updated to date .Now i`ve also tried uninstalling the usb driver from disk management still no joy .
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Sep 29, 2010
I recently installed Windows 7 - 64 bit on my Dell Precision M4400. Now the computer does not recognize any external monitors. It does not detect the external monitor as connected. I tried FunctionF8, and also tried to find if there were missing or outdated drivers and have had no luck.
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Feb 13, 2013
My iomega ext.drive , model LPHD-UPC suddenly stopped recognized in Windows 7 ?
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Mar 20, 2012
Every time i plug my external storage device to my computer, i am asked to "you need to format the disk in drive F: Before you can use it. Do you want to format it?" I checked my drive and its File system is RAW. I don't want format it because all my important data are in it.
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Jan 4, 2012
Attached an external sata hd with an esata connection. After power boot, external drive not recognized and also secondary internal sata hd not recognized.
Do I need to do something to the BIOS?Sinch stonooka has chosen the best answer to his/her question.Click here to view the answer that was selected.
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Nov 23, 2012
Buffalo HD-PET640U2/R-EU?I've been having problems with the above drive (similar to this previous thread). I've had the drive for about a year & a half. It worked fine (on Win XP Home) up until a few days ago, when I connected it to my new laptop (Win 7).On connecting, a warning message came up saying that Windows had detected disk errors - did I want to scan it? I said Yes, it completed the scan (no errors), but I couldn't access any of the files in Windows Explorer. I Safely Removed USB Hardware and tried again, but said No to the error scan ("Are you sure, some files may be corrupted?"). On continuing, I could see all my files.I then selected Windows Scandisk, and once the scan completed the HDD was very slow to select. It didn't show any of my files again, and showed the following error messages whenever I tried to access it:
Local Disk (E)You need to format the disk in drive E: before you can use it.Do you want to format it?
Error checking
The disk check could not be performed because the disk is not formatted.
The disk check could not be performed because Windows can't access the disk.
Would you like to format the disk?Location is not available E:\ is not accessible.The volume does not contain a recognised file system.Please make sure that all required file system drivers are loaded and that the volume is not corrupted.I have tried it on all 4 USB2 & USB3 ports, and my other Buffalo external HDDs work fine.The HDD appears as 'Buffalo HD-PETU2 USB Device' in:
Control Panel\Hardware and Sound\Devices and Printers
Control Panel\Hardware and Sound -> Device Manager
and in
Control Panel\System and Security\Administrative Tools -> Computer Management -> Disk Management
as '596.17GB RAW Online & Healthy'. My other HDDs appear as 'NTFS' or 'FAT32', not 'RAW', and I think (but am not 100% certain) that I'd formatted the problem disk to FAT32 when I bought it.In My Computer the disk only registers as 'Local Disk (E)'.I have tried to update Drivers but Windows says I already have the most up-to-date ones for the HDD.I also tried reassigning the Drive Letter to (K), but no change.This disk was the backup for my most important files when I changed to my new laptop, and so I really don't want to lose them. I've read on some sites that I can still attempt to recover the files even if I format the drive (as long as I haven't written anything new to it), but I don't want to risk that unless there's no alternative. Equally I'd rather not try opening the drive casing up - on one forum it was suggested that the 'power supply component' for the HDD might be the problem, and opening the casing, removing the p/supply comp and running the drive in another hard drive enclosure might work.
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Feb 26, 2011
I've been using a 1TB iOmega external hard drive with my laptop for about a month and a few days ago it stopped working and isn't being recognised, the power light comes on when i connect the usb cable to the laptop but there is no noise from the hard drive at all and it doesn't show in disk management.
I took it into work with me and connected to my work PC (which runs XP) and it works fine, also tried it on another laptop which is running Vista and it doesn't work.
Laptop is an HP Pavilion DV6
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Jul 1, 2011
I have an external hard drive, and a lot of data saved on it. My laptop recognises it, but i can't access it. When i go to device manager and try intialize, it says it is not ready.
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Aug 24, 2011
my external Seagate hard drive is no longer being recognized by my system. The information on this is absolutely critical to me- I am a DJ and Producer and this particular drive contains all of my song stems, acapellas, instrumentals, sample kits, and also backups of every program I use (as well as my OS backup).
I just recently moved into a new apartment and my drive worked fine before the move 2 days ago. I do not think I bumped it or damaged it (seeing as how I always put them in safe places on the go) and it is now no longer working.
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Nov 15, 2011
I have a My Book Essential 1TB External. I'm on Windows 7 x64. After I updated I've been getting a lot of bugs and extreme lag. I would click on the drive in My Computer, enter my HD password and the drive would open up with all my folders, etc. But then when I wanted to drag folders from my External onto my PC hard drive it would freeze up and automatically quit? Windows would no longer show the External as attached to my computer. No matter how many times I click on the icon in the task bar for WD SmartWare, it will never come back up. I have to restart my PC everytime so I can renter the External. I then installed all WD software from the Control Panel, didn't change anything or help at all.I have no clue what to do or what has happened, but my External HD is pretty much useless right now. I have very important files on there, I need to get access to this immediately.
EDIT: Now my PC has trouble recognizing the External. I tried it on my Laptop also, it doesn't show anything. It shows up under disk management sometimes. For example it'll show up then simply disappear.
Finally after restarting my PC a bunch of times and switching USB ports back and forth, this CD DRIVE E: icon appeared for the WD UNLOCKER. Whenever I try and double click on it to open it up, the green bar appears to load as seen below, then the icon just disappears, it will not open anything. When the "CD Drive (E:) WD Unlocker appears like above, my external HD will briefly appear under DISK MANAGEMENT. It shows up then just goes away along with the E: drive icon. I don't know if the USB cable that connects the External to my PC is bad or not? My external was working an hour before all this happened, so I don't understand what is happening? Also, when I click on "Devices and Printers", an icon appears with "My Book 1130". This is what is shows.
My External does light up when plugged into my PC and turns off when removed. I can hear a ticking sound which sounds like the HD working? All these problems seemed to start after I updated to WD SmartWare 1.5.1.6. I even unistalled all the WD software. For some reason whenever I try to install "WDSmartWare_Software_Upgrader_for_Windows_1.5.1.6 " it just sits there and hangs, doesn't do anything.
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Apr 14, 2010
I have a toshiba external 200G hard drive. It was used on a Dell computer which ran Windows XP. I now have a new computer which runs windows 7. However when i connect the external hard drive to the new computer i start to experience problems with the files on there.
So there are a number of directories, my pics for example. When I click on it you can see the pics on some of the sub folders when you view via icons. Some you cannot see the pic, just shows a generic shot. When you try and open the pics / jpegs you get an error saying image not found, check 'full pathname / file' exists. The same is true for all files, docs etc
I have been able to load the same pics and docs via a cd, so it is a problem with my new pc recognising the hard drive as opposed to a problem with the files
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